There are many passes along the Great Wall. Among them, there are two of the largest: one is Shanhaiguan at the eastern end, and the other is Jiayuguan at the western end. The latter is still better than the former, so Jiayuguan is the biggest barrier on the Great Wall and the largest scale in China.
Gansu travel
When you come to Gansu, how can you not punch the largest wall of the Great Wall: Jiayuguan!